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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // var a = 3;
        // var b = a;
        // a = 10;
        // console.log(a,b);

        // var p = {
            // name : "yyz",
            // age : 26,
            // sex : false,
        // };
        // var p1 = p;
        // p1.name = "zjc";
        // console.log(p1);
        // console.log(p);



        var arr = [23,67,54,29]
        var arr2 = arr;
        arr[5]=100;
        console.log(arr);
        console.log(arr2);


    </script>
</body>
</html>